Users list and show: Role, Password, OIDC columns; UserHelpers

- Index: load :role; columns Role, Password (has_password?), OIDC; contrast fix.
- Show: Role, OIDC (Linked/Not linked); has_password? for Password Authentication.
- UserHelpers: has_password?/1, has_oidc?/1. Gettext: new strings and DE translations.

lib/mv_web/live/user_live/index.html.heex

@@ -56,11 +56,28 @@
     >
       {user.email}
     </:col>
+    <:col :let={user} label={gettext("Role")}>
+      {user.role.name}
+    </:col>
     <:col :let={user} label={gettext("Linked Member")}>
       <%= if user.member do %>
         {MvWeb.Helpers.MemberHelpers.display_name(user.member)}
       <% else %>
-        <span class="text-base-content/50">{gettext("No member linked")}</span>
+        <span class="text-base-content/70">{gettext("No member linked")}</span>
+      <% end %>
+    </:col>
+    <:col :let={user} label={gettext("Password")}>
+      <%= if MvWeb.Helpers.UserHelpers.has_password?(user) do %>
+        <span>{gettext("Enabled")}</span>
+      <% else %>
+        <span class="text-base-content/70">—</span>
+      <% end %>
+    </:col>
+    <:col :let={user} label={gettext("OIDC")}>
+      <%= if user.oidc_id do %>
+        <span>{gettext("Linked")}</span>
+      <% else %>
+        <span class="text-base-content/70">—</span>
       <% end %>
     </:col>